COLWYN Bay’s nine-match unbeaten record ended in uninspiring fashion at the Stan Brown Stadium.
Seagulls manager Gary Finley was disappointed at the way his team lost for the first time this season.
“We never really got going, we didn’t have the fluency that we’d shown from the start of the season,” he said.
“We lacked that little bit of quality and for all the possession we had in the second half never really created anything.”
Seeking to complete a double over Kidsgrove, Colwyn’s best chance of the first half came when Neil Black stooped to meet a John Lawless cross, but his header just missed the target.
Athletic took the lead on 37 minutes when top scorer Michael Lennon was allowed far too much space to fire past Jamie Speare.
In a closely-fought second half, the hosts had two cast-iron penalty appeals turned down for fouls on Lennon and Matt Rhead before Bay keeper Speare produced a marvellous tip over from a Steven Pope 25-yarder.
Colwyn were seeing plenty of the ball but all too often lacked creativity in the final third.
It could have been worse for the visitors on 69 minutes when Rhead connected with a powerful header, but Speare saved superbly from point blank range.
Martin Crowder had a late chance of an equaliser but he lashed the ball wide.